<template>
  <div class="app-container">
    <h2 style="text-align: center;">发布新课程</h2>
    <el-steps :active="3" process-status="wait" align-center style="marginbottom: 40px;">
      <el-step title="填写课程基本信息"/>
      <el-step title="创建课程大纲"/>
      <el-step title="最终发布"/>
    </el-steps>
    <el-form label-width="120px">
      <div class="ccInfo">
        <img :src="coursePublish.cover">
        <div class="main">
          <h2>{{ coursePublish.title }}</h2>
          <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
          <p><span>所属分类：{{ coursePublish.subjectLevelOne }} — {{
              coursePublish.subjectLevelTwo
            }}</span></p>
          <p>课程讲师：{{ coursePublish.teacherName }}</p>
          <h3 class="red">￥{{ coursePublish.price }}</h3>
        </div>
      </div>
      <el-form-item>
        <el-button @click="previous">返回修改</el-button>
        <el-button :disabled="saveBtnDisabled" type="primary"
                   @click="publish">发布课程
        </el-button>
      </el-form-item>
    </el-form>
  </div>
</template>
<script>
import course from "../../../api/course";

export default {
  data() {
    return {
      saveBtnDisabled: false,// 保存按钮是否禁用
      courseId: '',
      coursePublish: {}
    }
  },
  created() {
    this.init()
    this.getInfo()
  },
  watch: {
    $route(to, from) {
      this.init()
    }
  },
  methods: {
    init() {
      if (this.$route.params && this.$route.params.id) {
        this.courseId = this.$route.params.id
      }
    },
    getInfo() {
      course.getAllCourseInfoById(this.courseId).then(res => {
        this.coursePublish = res.data.CoursePublishVo
      })
    },
    previous() {
      this.$router.push({path: '/course/chapter/' + this.courseId})
    },
    publish() {
      course.addAllCourseInfoById(this.courseId).then(res => {
        this.$message({
          type: 'success',
          message: '发布成功!'
        })
        this.$router.push({path: '/course/list'})
      })

    }
  }
}
</script>
<style scoped>
.ccInfo {
  background: #f5f5f5;
  padding: 20px;
  overflow: hidden;
  border: 1px dashed #DDD;
  margin-bottom: 40px;
  position: relative;
}

.ccInfo img {
  background: #d6d6d6;
  width: 500px;
  height: 278px;
  display: block;
  float: left;
  border: none;
}

.ccInfo .main {
  margin-left: 520px;
}

.ccInfo .main h2 {
  font-size: 28px;
  margin-bottom: 30px;
  line-height: 1;
  font-weight: normal;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main p {
  margin-bottom: 10px;
  word-wrap: break-word;
  line-height: 24px;
  max-height: 48px;
  overflow: hidden;
}

.ccInfo .main h3 {
  left: 540px;
  bottom: 20px;
  line-height: 1;
  font-size: 28px;
  color: #d32f24;
  font-weight: normal;
  position: absolute;
}
</style>
